ref: bc9308b1a6a9255d43113e5d4ee30b16e688c159
parent: f97eb726adadbde0e2d855b8b59f4f84f403d491
author: Ori Bernstein <ori@eigenstate.org>
date: Mon Nov 21 11:34:49 EST 2016
Add signals on Linux.
...I think it works.
--- a/lib/sys/setup+posixy.myr
+++ b/lib/sys/setup+posixy.myr
@@ -10,7 +10,6 @@
sa = [
.handler = ({;} : byte#),.flags = sys.Sarestart,
- .mask = [.bits = [0,0,0,0]]
]
sys.sigaction(Sigpipe, &sa, &osa)
}
--- a/lib/sys/sys+linux-x64.myr
+++ b/lib/sys/sys+linux-x64.myr
@@ -28,6 +28,8 @@
type pollevt = uint16
type futexop = uint32
+ type signo = int32
+ type sigflags = int64
type clock = union
`Clockrealtime
@@ -49,6 +51,17 @@
`Waitfail int32
;;
+ type sigset = struct
+ bits : uint32[2]
+ ;;
+
+ type sigaction = struct
+ handler : byte# /* code pointer */
+ flags : sigflags
+ restore : byte# /* code pointer */
+ mask : sigset
+ ;;
+
type timespec = struct
sec : uint64
nsec : uint64
@@ -320,6 +333,50 @@
/* return value for a failed mapping */
const Mapbad : byte# = (-1 : byte#)
+ /* signal flags */
+ const Sanocldstop : sigflags = 0x00000001
+ const Sanocldwait : sigflags = 0x00000002
+ const Sasiginfo : sigflags = 0x00000004
+ const Saonstack : sigflags = 0x08000000
+ const Sarestart : sigflags = 0x10000000
+ const Sanodefer : sigflags = 0x40000000
+ const Saresethand : sigflags = 0x80000000
+ const Sanomask : sigflags = Sanodefer
+ const Saoneshot : sigflags = Saresethand
+
+ /* signal numbers */
+ const Sighup : signo = 1
+ const Sigint : signo = 2
+ const Sigquit : signo = 3
+ const Sigill : signo = 4
+ const Sigtrap : signo = 5
+ const Sigabrt : signo = 6
+ const Sigiot : signo = 6
+ const Sigbus : signo = 7
+ const Sigfpe : signo = 8
+ const Sigkill : signo = 9
+ const Sigusr1 : signo = 10
+ const Sigsegv : signo = 11
+ const Sigusr2 : signo = 12
+ const Sigpipe : signo = 13
+ const Sigalrm : signo = 14
+ const Sigterm : signo = 15
+ const Sigstkflt : signo = 16
+ const Sigchld : signo = 17
+ const Sigcont : signo = 18
+ const Sigstop : signo = 19
+ const Sigtstp : signo = 20
+ const Sigttin : signo = 21
+ const Sigttou : signo = 22
+ const Sigurg : signo = 23
+ const Sigxcpu : signo = 24
+ const Sigxfsz : signo = 25
+ const Sigvtalrm : signo = 26
+ const Sigprof : signo = 27
+ const Sigwinch : signo = 28
+ const Sigio : signo = 29
+ const Sigpoll : signo = Sigio
+
/* syscalls */
const Sysread : scno = 0
const Syswrite : scno = 1
@@ -679,6 +736,10 @@
const chdir : (p : byte[:] -> int64)
const getcwd : (buf : byte[:] -> int64)
+ /* signals */
+ const sigaction : (sig : signo, act : sigaction#, oact : sigaction# -> int)
+ const sigprocmask : (how : int32, set : sigset#, oset : sigset# -> int)
+
/* fd stuff */
const pipe : (fds : fd[2]# -> int64)
const dup : (fd : fd -> fd)
@@ -808,6 +869,9 @@
const pipe = {fds; -> syscall(Syspipe, a(fds))} const dup = {fd; -> (syscall(Sysdup, a(fd)) : fd)} const dup2 = {src, dst; -> (syscall(Sysdup2, a(src), a(dst)) : fd)}+
+const sigaction = {sig, act, oact; -> (syscall(Sysrt_sigaction, a(sig), a(act), a(oact), a(sizeof(sigflags))) : int)}+const sigprocmask = {sig, act, oact; -> (syscall(Sysrt_sigprocmask, a(sig), a(act), a(oact), a(sizeof(sigflags))) : int)}/* threading */
const futex = {uaddr, op, val, timeout, uaddr2, val3